no code implementations • 23 Nov 2021 • Xiangxiang Zhu, Kunde Yang, Zhuosheng Zhang
By the analysis of the properties of the IF equation, we prove that a good IF equation can unify the well-known IF and group delay estimators and provides an effective way to characterize the mixture of time-varying and frequency-varying signals.
no code implementations • 2 Aug 2021 • Xiangxiang Zhu, Bei Li, Kunde Yang, Zhuosheng Zhang, Wenting Li
The standard chirplet transform (CT) with a chirp-modulated Gaussian window provides a valuable tool for analyzing linear chirp signals.